Vault-13

ULTRAGENYX PHARMACEUTICAL IN RARE

COM · Common Stock · CUSIP 90400D108 · ISIN US90400D1081

Biopharmaceutical company based in Novato, California, United States

233 institutional holders
67,781,34167.8m shares reported held*
96.7% of all shares outstanding*
$2.8bnreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($14.4m this quarter). Holder counts are more reliable. Shares outstanding: 70.1m as of 2022-10-28, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $41.41. Options: 12 managers hold calls ($17.6m notional), 10 hold puts ($16.1m).

Biggest calls

Caption Management, LLC — $5.1m122.9k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $3.9m93.4k shares
CITADEL ADVISORS LLC — $3.9m93.3k shares
JANE STREET GROUP, LLC — $1.3m30.8k shares
BANK OF AMERICA CORP /DE/ — $1.2m30.0k shares
SG3 Management, LLC — $521.9k12.6k shares
SIMPLEX TRADING, LLC — $509.0k12.3k shares
Walleye Trading LLC — $443.0k10.7k shares
Balyasny Asset Management L.P. — $414.0k10.0k shares
Walleye Capital LLC — $340.0k8.2k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP — $3.8m91.5k shares
Caption Management, LLC — $3.4m82.4k shares
SG3 Management, LLC — $3.3m80.0k shares
JANE STREET GROUP, LLC — $2.4m57.0k shares
CITADEL ADVISORS LLC — $1.6m39.0k shares
BANK OF AMERICA CORP /DE/ — $1.2m30.0k shares
SIMPLEX TRADING, LLC — $331.0k8.0k shares
Walleye Capital LLC — $37.0k900 shares
GROUP ONE TRADING LLC — $8.0k200 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BlackRock, Inc. 13G · institution +3.2 pts · filed 2026-07-30 8.3% +3.2 pts 8.1m≈ $271.8m 2026-07-30
RTW INVESTMENTS, LP 13G · institution new · filed 2026-08-14 7.9% new 7.8m≈ $260.3m 2026-08-14
VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution +1.5 pts · filed 2026-07-31 7.0% +1.5 pts 6.9m≈ $228.8m 2026-07-31
AQR CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-08-13 6.7% new 6.6m≈ $219.1m 2026-08-13
Madison Avenue Partners, LP 13G · passive investor new · filed 2026-10-20 6.4% new 6.3m≈ $210.6m 2026-10-20
STATE STREET CORP 13G · institution +1.2 pts · filed 2026-08-07 6.3% +1.2 pts 6.2m≈ $205.6m 2026-08-07
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 5.1% new 5.1m≈ $168.9m 2026-07-31

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), FMR LLC (3.5%, 2026-02-05)

Insider purchases and sales in Q3 2022

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
10010Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 8 sellingQ1 22: 0 buyingQ1 22: 8 sellingQ1 22Q2 22: 0 buyingQ2 22: 2 sellingQ3 22: 0 buyingQ3 22: 0 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—8$695.0k—
Q1 20220—8$2.5m—
Q2 20220—2$27.3k—
Q3 20220—0——

None reported in Q3 2022.

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 6,161,8666.2m $255.2m $255.2m 0.01% —
2 WELLINGTON MANAGEMENT GROUP LLP 0.05% of their portfolio Boston, MA 6,046,0386.0m $250.4m $250.4m 0.05% —
3 PRICE T ROWE ASSOCIATES INC /MD/ 0.03% of their portfolio BALTIMORE, MD 4,756,9564.8m $197.0m $197.0m 0.03% —
4 BlackRock Inc. 0.01% of their portfolio New York, NY 3,927,6393.9m $162.6m $162.6m 0.01% —
5 FEDERATED HERMES, INC. 0.46% of their portfolio PITTSBURGH, PA 3,816,3973.8m $158.0m $158.0m 0.46% —
6 Capital International Investors 0.04% of their portfolio Los Angeles, CA 3,391,0823.4m $140.4m $140.4m 0.04% —
7 Clearbridge Investments, LLC 0.12% of their portfolio NEW YORK, NY 2,762,8222.8m $114.4m $114.4m 0.12% —
8 T. Rowe Price Investment Management, Inc. 0.09% of their portfolio BALTIMORE, MD 2,607,4312.6m $108.0m $108.0m 0.09% —
9 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 2,559,5442.6m $106.0m $106.0m 0.01% —
10 RTW INVESTMENTS, LP 2.25% of their portfolio NEW YORK, NY 2,359,9962.4m $97.7m $97.7m 2.25% —
11 ALKEON CAPITAL MANAGEMENT LLC 0.63% of their portfolio New York, NY 2,211,9592.2m $91.6m $91.6m 0.63% —
12 Avidity Partners Management LP 1.85% of their portfolio DALLAS, TX 2,051,6002.1m $85.0m $85.0m 1.85% —
13 ALLIANCEBERNSTEIN L.P. 0.03% of their portfolio NASHVILLE, TN 1,313,5331.3m $54.4m $54.4m 0.03% —
14 Rock Springs Capital Management LP 1.27% of their portfolio Baltimore, MD 1,187,9921.2m $49.2m $49.2m 1.27% —
15 MACQUARIE GROUP LTD 0.06% of their portfolio Sydney, NSW 2000, C3 1,119,3951.1m $46.4m $46.4m 0.06% —
16 GOLDMAN SACHS GROUP INC 0.01% of their portfolio NEW YORK, NY 1,011,1881.0m $41.9m $41.9m 0.01% —
17 FMR LLC 0.00% of their portfolio BOSTON, MA 979,779979.8k $40.6m $40.6m 0.00% —
18 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 924,877924.9k $38.3m $38.3m 0.01% —
19 DEUTSCHE BANK AG\ 0.02% of their portfolio FRANKFURT AM MAIN, 2M 829,667829.7k $34.4m $34.4m 0.02% —
20 NORGES BANK 0.01% of their portfolio OSLO, Q8 765,120765.1k $31.7m $31.7m 0.01% —
21 Avoro Capital Advisors LLC 0.57% of their portfolio NEW YORK, NY 750,000750.0k $31.1m $31.1m 0.57% —
22 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 735,710735.7k $30.5m $30.5m 0.01% —
23 FIRST TRUST ADVISORS LP 0.04% of their portfolio Wheaton, IL 684,344684.3k $28.3m $28.3m 0.04% —
24 AXA S.A. 0.05% of their portfolio PARIS, I0 644,798644.8k $26.7m $26.7m 0.05% —
25 CADIAN CAPITAL MANAGEMENT, LP 1.52% of their portfolio NEW YORK, NY 627,203627.2k $26.0m $26.0m 1.52% —
26 D. E. Shaw & Co., Inc. 0.03% of their portfolio New York, NY 472,354472.4k $19.6m $19.6m 0.03% —
27 BAKER BROS. ADVISORS LP 0.13% of their portfolio NEW YORK, NY 470,974471.0k $19.5m $19.5m 0.13% —
28 First Light Asset Management, LLC 1.90% of their portfolio Edina, MN 453,794453.8k $18.8m $18.8m 1.90% —
29 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 400,113400.1k $16.6m $16.6m 0.00% —
30 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 367,196367.2k $15.2m $15.2m 0.00% —
31 FRED ALGER MANAGEMENT, LLC 0.08% of their portfolio NEW YORK, NY 365,713365.7k $15.1m $15.1m 0.08% —
32 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 365,106365.1k $15.1m $15.1m 0.01% —
33 Point72 Asset Management, L.P. 0.06% of their portfolio STAMFORD, CT 350,687350.7k $14.5m $14.5m 0.06% —
34 EMERALD ADVISERS, LLC 0.74% of their portfolio LEOLA, PA 347,081347.1k $14.4m $14.4m 0.74% —
35 Hudson Bay Capital Management LP 0.15% of their portfolio STAMFORD, CT 340,000340.0k $14.1m $14.1m 0.15% —
36 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 336,996337.0k $14.0m $14.0m 0.00% —
37 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 312,771312.8k $13.0m $13.0m 0.00% —
38 EVENTIDE ASSET MANAGEMENT, LLC 0.25% of their portfolio Boston, MA 305,800305.8k $12.7m $12.7m 0.25% —
39 MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio NEW YORK, NY 295,402295.4k $12.2m $12.2m 0.02% —
40 TD Asset Management Inc 0.01% of their portfolio Toronto, A6 262,364262.4k $10.6m $10.6m 0.01% —
41 TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio NEW YORK, NY 255,389255.4k $10.6m $10.6m 0.04% —
42 Cubist Systematic Strategies, LLC 0.07% of their portfolio STAMFORD, CT 244,579244.6k $10.1m $10.1m 0.07% —
43 EMERALD MUTUAL FUND ADVISERS TRUST 0.62% of their portfolio LEOLA, PA 238,204238.2k $9.9m $9.9m 0.62% —
44 JACOBS LEVY EQUITY MANAGEMENT, INC 0.07% of their portfolio FLORHAM PARK, NJ 220,880220.9k $9.1m $9.1m 0.07% —
45 Ally Bridge Group (NY) LLC 5.93% of their portfolio NEW YORK, NY 217,075217.1k $9.0m $9.0m 5.93% —
46 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 213,650213.7k $8.8m $8.8m 0.00% —
47 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 204,157204.2k $8.5m $8.5m 0.00% —
48 Assenagon Asset Management S.A. 0.03% of their portfolio SENNINGERBERG, N4 189,094189.1k $7.8m $7.8m 0.03% —
49 Connor, Clark & Lunn Investment Management Ltd. 0.05% of their portfolio VANCOUVER, A1 188,421188.4k $7.8m $7.8m 0.05% —
50 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 183,006183.0k $7.6m $7.6m 0.01% —
51 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 178,363178.4k $7.4m $7.4m 0.00% —
52 INTERNATIONAL BIOTECHNOLOGY TRUST PLC 2.31% of their portfolio London, X0 174,052174.1k $7.2m $7.2m 2.31% —
53 SPHERA FUNDS MANAGEMENT LTD. 1.27% of their portfolio TEL AVIV, L3 173,696173.7k $7.2m $7.2m 1.27% —
54 Swiss National Bank 0.00% of their portfolio ZURICH, V8 157,552157.6k $6.5m $6.5m 0.00% —
55 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.02% of their portfolio Boston, MA 155,062155.1k $6.4m $6.4m 0.02% —
56 CREDIT SUISSE AG/ 0.01% of their portfolio ZURICH, V8 141,255141.3k $5.8m $5.8m 0.01% —
57 Rafferty Asset Management, LLC 0.06% of their portfolio New York, NY 140,690140.7k $5.8m $5.8m 0.06% —
58 California Public Employees Retirement System 0.01% of their portfolio Sacramento, CA 135,343135.3k $5.6m $5.6m 0.01% —
59 CITIGROUP INC 0.01% of their portfolio NEW YORK, NY 133,384133.4k $5.5m $5.5m 0.01% —
60 Mirae Asset Global Investments Co., Ltd. 0.01% of their portfolio SEOUL, M5 132,492132.5k $5.5m $5.5m 0.01% —
61 PINNACLE ASSOCIATES LTD 0.12% of their portfolio NEW YORK, NY 130,418130.4k $5.4m $5.4m 0.12% —
62 Squarepoint Ops LLC 0.05% of their portfolio NEW YORK, NY 125,911125.9k $5.2m $5.2m 0.05% —
63 NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio ALBANY, NY 123,995124.0k $5.1m $5.1m 0.01% —
64 Ergoteles LLC 0.18% of their portfolio NEW YORK, NY 123,189123.2k $5.1m $5.1m 0.18% —
65 ROTHSCHILD & CO ASSET MANAGEMENT US INC. 0.09% of their portfolio Stamford, CT 120,667120.7k $5.0m $5.0m 0.09% —
66 PEREGRINE CAPITAL MANAGEMENT LLC 0.16% of their portfolio MINNEAPOLIS, MN 118,929118.9k $4.9m $4.9m 0.16% —
67 Ensign Peak Advisors, Inc 0.01% of their portfolio SALT LAKE CITY, UT 113,989114.0k $4.7m $4.7m 0.01% —
68 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 111,336111.3k $4.8m $4.8m 0.00% —
69 TWINBEECH CAPITAL LP 0.12% of their portfolio PURCHASE, NY 110,066110.1k $4.6m $4.6m 0.12% —
70 BANK OF NOVA SCOTIA 0.01% of their portfolio TORONTO, A6 99,20099.2k $4.1m $4.1m 0.01% —
71 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 98,63798.6k $4.1m $4.1m 0.00% —
72 Russell Investments Group, Ltd. 0.01% of their portfolio Seattle, WA 93,37593.4k $3.9m $3.9m 0.01% —
73 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio BALA CYNWYD, PA 91,68991.7k $3.8m $3.8m 0.01% —
74 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio TALLAHASSEE, FL 90,71390.7k $3.8m $3.8m 0.01% —
75 WCM INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio LAGUNA BEACH, CA 90,05590.1k $3.7m $3.7m 0.01% —
76 MONTANOVA CAPITAL, LLC 0.16% of their portfolio New York, NY 88,94088.9k $3.7m $3.7m 0.16% —
77 Legal & General Group Plc 0.00% of their portfolio London, X0 84,48384.5k $3.5m $3.5m 0.00% —
78 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 83,69283.7k $3.5m $3.5m 0.01% —
79 Privium Fund Management B.V. 1.26% of their portfolio AMSTERDAM, P7 82,34182.3k $3.3m $3.3m 1.26% —
80 MARSHALL WACE, LLP 0.01% of their portfolio LONDON, X0 80,71480.7k $3.3m $3.3m 0.01% —
81 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 75,23575.2k $3.1m $3.1m 0.00% —
82 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 73,29173.3k $3.0m $3.0m 0.00% —
83 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.03% of their portfolio FRANKFORT, KY 72,10972.1k $3.0m $3.0m 0.03% —
84 E. Ohman J:or Asset Management AB 0.14% of their portfolio STOCKHOLM, V7 72,00072.0k $3.0m $3.0m 0.14% —
85 CW Advisors, LLC 0.08% of their portfolio BOSTON, MA 70,43870.4k $2.9m $2.9m 0.08% —
86 NOMURA HOLDINGS INC 0.03% of their portfolio TOKYO, M0 70,07370.1k $2.9m $2.9m 0.03% —
87 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 67,41467.4k $2.8m $2.8m 0.01% —
88 Tekla Capital Management LLC 0.11% of their portfolio Boston, MA 67,06567.1k $2.8m $2.8m 0.11% —
89 BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio PARIS, I0 65,99766.0k $2.7m $2.7m 0.01% —
90 SG3 Management, LLC 0.85% of their portfolio DORADO, PR 64,34664.3k $2.7m $2.7m 0.85% —
91 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 62,10862.1k $2.6m $2.6m 0.00% —
92 PICTET ASSET MANAGEMENT SA 0.00% of their portfolio GENEVA 73, V8 58,49558.5k $2.4m $2.4m 0.00% —
93 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 57,80757.8k $2.4m $2.4m 0.00% —
94 Motley Fool Wealth Management, LLC 0.15% of their portfolio ALEXANDRIA, VA 56,01856.0k $2.3m $2.3m 0.15% —
95 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 54,90754.9k $2.3m $2.3m 0.01% —
96 Caption Management, LLC 0.38% of their portfolio OKLAHOMA CITY, OK 51,80051.8k $2.1m $2.1m 0.38% —
97 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 51,40051.4k $2.1m $2.1m 0.01% —
98 CAPITAL FUND MANAGEMENT S.A. 0.05% of their portfolio PARIS, I0 50,96651.0k $2.1m $2.1m 0.05% —
99 Candriam S.C.A. 0.01% of their portfolio STRASSEN, N4 49,48049.5k $2.0m $2.0m 0.01% —
100 Thrivent Financial for Lutherans 0.01% of their portfolio Minneapolis, MN 48,46948.5k $2.0m $2.0m 0.01% —